CN205402587U - A lens for cell -phone flash of light lamp module group - Google Patents
A lens for cell -phone flash of light lamp module group Download PDFInfo
- Publication number
- CN205402587U CN205402587U CN201620256588.1U CN201620256588U CN205402587U CN 205402587 U CN205402587 U CN 205402587U CN 201620256588 U CN201620256588 U CN 201620256588U CN 205402587 U CN205402587 U CN 205402587U
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- Prior art keywords
- face
- lens
- plane
- mobile phone
- exit facet
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Abstract
The utility model relates to a lens for cell -phone flash of light lamp module group comprises optical surface and structural plane, and the optical surface includes incident surface (6), and emitting face (1) at complete reflective surface (2) and top, the structural plane includes outer holding surface (3), binding face (4), the face of gluing (8) is advanced in interior holding surface (7), presss from both sides (9). It is measure -alike that incident surface (6) profile is circular and emitting face (1), is spliced by two fei nieer line faces that be axis rotational symmetry with the central axis (5) to form. Complete reflective surface (2) perpendicular to emitting face (1) to link to each other with the face of pressing from both sides (5), binding face and the face of pressing from both sides (9) are connected in outer holding surface (3). The utility model provides the luminous efficiency of high flash of light lamp module group promotes the luminance in the view field range who takes, and the design of fei nieer line face is in beautiful fashion in appearance.
Description
Technical field
This utility model relates to field of semiconductor illumination, particularly to a kind of non-imaging lens for mobile phone flashlight module.
Background technology
LED, as a kind of efficient, energy-conservation lighting source, is widely used in various lighting field.The current smart mobile phone with double flashing light photographic head at technical elements with higher level, it is possible to promoting the verity of image quality of taking pictures, image quality becomes more naturally clearly.But when only using LED as flash lamp, due to smart mobile phone in structure space limited, go out light and can be subject to the interference of handset structure, another LED lighting angle and luminous intensity distribution also do not reach the requirement as flash lamp, and the hot spot uniformity effects of flash lamp determines the quality of a taking photos by using flashlights effect.Therefore how to design a perfect flash lamp and coordinate photographic head to realize the problem that outstanding effect of taking pictures has become extremely urgent, want to change LED lighting angle, fit lens could must better realize LED light can better be utilized when using LED light source as flash lamp, reach excellent light efficiency and promote the shooting effect of mobile phone.
Utility model content
(1) to solve the technical problem that
The purpose of this utility model seeks to overcome disadvantages mentioned above, it is desirable to provide a kind of lens for mobile phone flashlight module.
(2) technical scheme
For reaching above-mentioned purpose, the lens for mobile phone flashlight module of the present utility model, it is made up of optical surface and structural plane, optical surface includes the plane of incidence, the exit facet at fully reflecting surface and top, structural plane includes outer support face, binding face, inner support face, enters glue surface, presss from both sides face.It is characterized in that: described plane of incidence profile is for circular equivalently-sized with exit facet, by two be Axial-rotational Symmetry with central axis Fresnel stricture of vagina face be spliced, center, Fresnel stricture of vagina face is aspheric surface, all the other buses are zigzag, single jagged line is made up of straight line and a curve, and respectively leaves 7 unbroken loop after two Fresnel stricture of vagina face splicings；Described fully reflecting surface is perpendicular to exit facet, and is connected with folder face；Binding face is connected by described outer support face with folder face.
Further, described lens material is PMMA plastics.
Further, the photo-fission that light source is sent by the plane of incidence becomes the light of multiple different directions, and part reflects through fully reflecting surface, finally launches from exit facet.
Further, described in enter glue surface lower than supporting surface 0.1mm, glue-feeder thickness is 0.8mm.
Further, described exit facet is plane and exceeds folder face.
(3) beneficial effect
Compared with prior art, the technical solution of the utility model has the advantage that the light extraction efficiency of 1. raising flash lamp module, eliminates the too small phenomenon blocking emergent ray of diaphragm；
2. the light that LED sends is converged to FOV78 °, promote the brightness in the field range of shooting, allow captured by mobile phone photo imaging clearly out, uniform in color；
3. beautiful in appearance fashion is designed in Fresnel stricture of vagina face.
Accompanying drawing explanation
Cross section view is cut at the center that Fig. 1 is utility model；
Fig. 2 is the top view of utility model；
Fig. 3 is test schematic diagram.
Number in the figure is:
(1)-exit facet (2)-fully reflecting surface (3)-outer support face
(4)-binding face (5)-central axis (6)-plane of incidence
(7)-inner support face (8)-enter glue surface (9)-folder face
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following example are used for illustrating this utility model, but are not limited to scope of the present utility model.
Such as the center sectility interview figure that Fig. 1 and Fig. 2 is utility model, a kind of lens of the PMMA material for mobile phone flashlight module, it is made up of optical surface and structural plane, optical surface includes the plane of incidence 6, the exit facet 1 at fully reflecting surface 2 and top, and structural plane includes outer support face 3, binding face 4, inner support face 7, enters glue surface 8, presss from both sides face 9.The described plane of incidence 6 profile is circular equivalently-sized with exit facet 1, by two be Axial-rotational Symmetry with central axis 5 Fresnel stricture of vagina face be spliced, center, Fresnel stricture of vagina face is aspheric surface, all the other buses are zigzag, single jagged line is made up of straight line and a curve, and respectively leaves 7 unbroken loop after two Fresnel stricture of vagina face splicings；Described fully reflecting surface 2 is perpendicular to exit facet 1, and is connected with folder face 5；Binding face is connected by described outer support face 3 with folder face 5.
Specific LED light source is respectively arranged on central axis 5, and LED exiting surface is perpendicular to central axis 5 and distance plane of incidence 0.2mm.The light that LED sends splits into multiple directions after the plane of incidence 6 reflects, and some light is emitted directly toward exit facet 1, and remainder light, then through directive exit facet 1 after the plane of incidence 6 or fully reflecting surface 2 reflection, arrives light homed on its target face after refraction of exit facet 1.As it is shown on figure 3, the rectangle receiving surface that target face is the 1296mm*972mm outside distance 1m, point centered by O point, A, B, C, D point is 0.7F point, and E, F, G, H point is 1F point.Testing through illumination, the illumination at 0.7F place is more than the 60% of center illumination, and the illumination at 1F place is more than the 35% of center illumination, and center illumination is more than 180lux, hot spot indifference zoning.
In sum, above-mentioned embodiment is not restricted embodiment of the present utility model, modification that all those skilled in the art carry out on the basis of flesh and blood of the present utility model or equivalent deformation, all at technology category of the present utility model.
Claims (5)
1. the lens for mobile phone flashlight module, it is characterised in that: including optical surface and structural plane, described optical surface includes the exit facet (1) at the plane of incidence (6), fully reflecting surface (2) and top；Structural plane include outer support face (3), binding face (4), inner support face (7), enter glue surface (8) and folder face (9)；It is characterized in that: the described plane of incidence (6) profile is for circular equivalently-sized with exit facet (1), by two be Axial-rotational Symmetry with central axis (5) Fresnel stricture of vagina face be spliced, center, Fresnel stricture of vagina face is aspheric surface, all the other buses are zigzag, single jagged line is made up of straight line and a curve, and respectively leaves 7 unbroken loop after two Fresnel stricture of vagina face splicings；Described fully reflecting surface (2) is perpendicular to exit facet (1), and is connected with folder face (5)；Binding face is connected by described outer support face (3) with folder face (9).
2. the lens for mobile phone flashlight module as claimed in claim 1, it is characterised in that: described lens material is PMMA plastics.
3. the lens for mobile phone flashlight module as described in any one of claim 1-2, it is characterized in that: the photo-fission that light source is sent by the plane of incidence (6) becomes the light of multiple different directions, part reflects through fully reflecting surface (2), finally launches from exit facet (1).
4. the lens for mobile phone flashlight module as claimed in claim 1, it is characterised in that: described in enter glue surface (8) lower than supporting surface (3) 0.1mm, glue-feeder thickness is 0.8mm.
5. the lens for mobile phone flashlight module as claimed in claim 1, it is characterised in that: described exit facet (1) is for plane and exceeds folder face (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620256588.1U CN205402587U (en) | 2016-03-30 | 2016-03-30 | A lens for cell -phone flash of light lamp module group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620256588.1U CN205402587U (en) | 2016-03-30 | 2016-03-30 | A lens for cell -phone flash of light lamp module group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205402587U true CN205402587U (en) | 2016-07-27 |
Family
ID=56418967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620256588.1U Expired - Fee Related CN205402587U (en) | 2016-03-30 | 2016-03-30 | A lens for cell -phone flash of light lamp module group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205402587U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650599A (en) * | 2016-03-30 | 2016-06-08 | 宁波正特光学电器有限公司 | Lens for mobile phone flashlight module |
-
2016
- 2016-03-30 CN CN201620256588.1U patent/CN205402587U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650599A (en) * | 2016-03-30 | 2016-06-08 | 宁波正特光学电器有限公司 | Lens for mobile phone flashlight module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160727 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |